Harrow attachment



April 9, 1929. c. H. STONE HARROW ATTACHMENT Filed Oct. 51, 1927Cfiar/es Hawk- 67mm, deceased,

Susan]? 37mm, almll z/kfrafr x Patented Apr, 9, 1929.

UNITED STATES CHARLES HUMPHREYS STONE, DECEASED, LATE OF MUSCATINE,IOWA, BY SUSAN FITCH STONE, ADMINISTR-ATRIX, OF MUSCATINE, IOWA.

HARROW ATTACHMENT.

Application filed October 31, 1927. Serial No. 229,994.

The invention aims to provide a novel form of attachment for toothedharrows, en'ibodying a wheel for disposition at a front corner of theharrow to travel upon the ground and prevent catching of said corner inthe ground when the harrow is sharply turned, thus effectivelypreventing it from tipping over.

A further object of the invention is to provide an attachment of theclass set forth which may be quickly and easily applied to one of theusual tooth-carrying rock shafts of a harrow and will function toelevate the front end of said harrow when said shafts are turned todirect all of the teeth almost horizontally rearward, thus facilitatingdragging of the harrow from one point to another without seriouslymutilating the ground over which it is being drawn.

With the foregoing in view, the invention resides in the novel subjectmatter hereinafter described and claimed, the description beingsupplemented by the accompanying drawing.

Fig. 1 is a side elevation of the attachment applied to a harrow,portions of the latter being broken away.

Fig. 2 is a fragmentary top plan view of the parts shown in Fig. 1.

Fig. 3 is a vertical sectional view through a portion of the harrow online 33 of Fig. 1 and Fig. 2, showing a rear elevation of theattachment.

Fig. 4 is a vertical sectional view on line H of Fig. 2 and Fig. 3.

The numeral 5 on the drawing denotes a portion of a harrow frame, 6 hasreference to the usual rock shafts carrying the harrow teeth 7, and thenumerals 8, 9 and 10 refer to parts of the conventional means forturning the rock shafts 6 at will to vary the angle of the teeth 7 withregard to the frame 5. The attachment constituting the gist of thepresent invention, is mounted at the right front corner of the harrow onone end of the foremost rock shaft 6, and if desired another of theseattachments may be similarly mounted at the left hand front corner.

The attachment embodies a vertical standard 11 upon whose lower end afork 12 or other wheel-carrying member, is swiveled, said member 12being provided with a ground engaging wheel 13 of wood or metal. Upperand lower clamping jaws 14 and 15 are mounted for relative verticalmovement upon the standard 11, said jaws being shown in the form ofwooden blocks having openings 16 through which said standard passes, theupper block 14 being freely slidable along said standard, whereas thelower block 5 may be supported directly or indirectly by a part of theswivel connection 17 between said standard and the wheel-carrying member12. A nut 18 and preferably a washer also, are provided on the standard14 for the purpose of downwardly moving the jaw or block 14 intoclamping relation with the lower jaw or block 15, so that these jaws maybe utilized in clamping said standard to the proper one of the shafts 6.To provide for the desired angular relation between the standard 11 andthe teeth 7, an arched or U-shaped clip 19 is secured upon shaft 6 by abolt 20, the crown portion of said clip being engaged by the upper jawor block 14 while the ends thereof contact with the lower jaw or block15, the arms of said clip being of different appropriate lengths toobtain the desired angular setting of the standard 7. Moreover, byhaving the jaws 1415 engage the ends of this clip, it is insured thatthere shall be no turning of the standard and jaws about the shaft 6 bywhich the attachment is carried. Preferably, the outer lower corner ofthe block or jaw 15 and the upper outer corner of the lower jaw or block15, contact with the adjacent tooth clamp 21, so that the latter assistsin holding the entire attachment against lat eral movement away from theframe 5.

From the foregoing taken in connection with the accompanying drawing, itwill be seen that a very simple and inexpensive at tachment has beenprovided, that said attachment may be quickly and easily applied, andthat it will be highly efficient for the purposes hereinbefore setforth. As excellent results are obtainable from the details disclosed,they may well be followed. However, within the scope of the invention asclaimed, variations may be made.

What is claimed is:

1. In a harrow havinga tooth-carrying rock shaft; a clip secured aroundsaid rock shaft, a caster wheel spaced from said rock shaft, andattaching means for said caster wheel embodying spaced jaws at oppositesides of said shaft, at least one of said jaws being non-rotatablyengaged with said clip.

2. A structure as specified in claim 1; said clip being of U-shape withrelatively long end short arms whose ends abut said one 3 3. In a harroWattachment, a U-shaped clip to surround a rock shaft of a harrow and abolt passing through both arms of said clip for drawing them together toclamp the clip on the shaft, said arms projecting difierent distancesfrom said bolt for the purpose set forth.

In testimony whereof, I have hereunto affixed my signature. 7

SUSAN siren STONE, Administmfil'im of Charles Humphrey s Stone,Deceased.

